Draining for Profit, and Draining for HealthOrange Judd Company, 1902 - 252 páginas |
Dentro del libro
Resultados 1-5 de 48
Página 4
... foot squares and contour lines .. 6. - Levelling instrument .. 66 rod .. 8. - Map with contour lines .. 9. - Wells ' Clinometer .. 18 18 14 50 51 52 53 54 56 66 66 10. - Stone pit to connect spring with drain . 59 66 11. - Stone pit and ...
... foot squares and contour lines .. 6. - Levelling instrument .. 66 rod .. 8. - Map with contour lines .. 9. - Wells ' Clinometer .. 18 18 14 50 51 52 53 54 56 66 66 10. - Stone pit to connect spring with drain . 59 66 11. - Stone pit and ...
Página 31
... foot in depth of retentive soils is more retentive than that which lies below . If this opinion as to the cause of this greater im- perviousness is correct , it will be readily seen how water , descending to the drains , by carrying ...
... foot in depth of retentive soils is more retentive than that which lies below . If this opinion as to the cause of this greater im- perviousness is correct , it will be readily seen how water , descending to the drains , by carrying ...
Página 32
... foot of very dry soil , of favorable character , has been estimated to absorb within its particles , -holding no free water , or water of drainage , -about one- half its bulk of water ; if this is true , the amount required to moisten a ...
... foot of very dry soil , of favorable character , has been estimated to absorb within its particles , -holding no free water , or water of drainage , -about one- half its bulk of water ; if this is true , the amount required to moisten a ...
Página 51
... FOOT SQUARES , AND CONTOUR LINES . fractions of a foot , and is furnished with a HOW TO LAY OUT A SYSTEM OF DRAINS . 51.
... FOOT SQUARES , AND CONTOUR LINES . fractions of a foot , and is furnished with a HOW TO LAY OUT A SYSTEM OF DRAINS . 51.
Página 52
George Edwin Waring (Jr.) fractions of a foot , and is furnished with a movable tar get , so painted that its center point may be plainly seen . The attendant ... foot are traced on the plan in Fig . 52 DRAINING FOR PROFIT AND HEALTH .
George Edwin Waring (Jr.) fractions of a foot , and is furnished with a movable tar get , so painted that its center point may be plainly seen . The attendant ... foot are traced on the plan in Fig . 52 DRAINING FOR PROFIT AND HEALTH .
Otras ediciones - Ver todas
Draining for Profit, and Draining for Health George E 1833-1898 Waring Sin vista previa disponible - 2015 |
Términos y frases comunes
accumulated acre agricultural allow basin bottom brick bushels carried cause Central Park cents chapter clay collars commenced condition connection considerable contour lines cost course covered crop cultivation deposit depth discharge diseases distance ditch drainage dyke earth effect evaporation fall farm farmer feet deep fever field fifth column filled flow foot four feet Gisborne grade ground Hackensack River heat heavy rain houses improvement inches joints kiln labor laid land lateral drains laying length less lower main drain malarious manure marsh matters moisture muddy water nearly necessary obstruction operation outlet particles pipes placed plants plow porous practice prevent quantity rain-fall removed result roots salt marsh saturated season sewage sewers shown in Fig side silt silt-basin slope soakage spring stakes steepest descent stone subsoil sufficient surface tide tile tile-draining tion typhoid fever undrained upper end vegetable whole width